The Origin of Species by Means of Natural Selection, Or, The Preservation of Favored Races in the Struggle for LifeWerner Company, Book Manufacturers, 1900 - 538페이지 |
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64개의 결과 중 1 - 3개
21 페이지
... believe that barbarian man existed at an enormously remote period ; and we know that at the pres- ent day there is hardly a tribe so barbarous , as not to have domesticated at least the dog . The origin of most of our domestic animals ...
... believe that barbarian man existed at an enormously remote period ; and we know that at the pres- ent day there is hardly a tribe so barbarous , as not to have domesticated at least the dog . The origin of most of our domestic animals ...
155 페이지
... believe that many lowly organised forms now exist throughout the world , from various causes . In some cases variations or individual differences of a favourable nature may never have arisen for natural selection to act on and ...
... believe that many lowly organised forms now exist throughout the world , from various causes . In some cases variations or individual differences of a favourable nature may never have arisen for natural selection to act on and ...
250 페이지
... believe that the progenitor of the seal did not possess a flipper , but a foot with five toes fitted for walking or grasping ; but we may further venture to believe that the several bones in the limbs of the monkey , horse , and bat ...
... believe that the progenitor of the seal did not possess a flipper , but a foot with five toes fitted for walking or grasping ; but we may further venture to believe that the several bones in the limbs of the monkey , horse , and bat ...
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자주 나오는 단어 및 구문
adapted advantage allied animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree descendants developed difficulty distinct species disuse domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important improved increase individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less males manner Melipona Mivart modified natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species parent perfect period pigeons pollen pollen-grains present preserved prey principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens structure struggle supposed swimbladder tend tendency tion tree variability variations varieties vary widely wings young